Portable dkilling and beaming machine



A. J. COUGHTHY.

' PORTABLE DRILLiNG'AND REAMING MACHINE.

APPLICATION HLED OCT. 30| 1918. 1,306,467. Patented June 10, 1919.

2 SHEETS-SHEET I.

A. J. COUGHTRY.

PORTABLE DRILLING AND REAMLNG MACHINE.

APPLICATION FILEDOCT. 30. 1913.

1,306,467. I PatentedJune 10,1919.

2 SHEETS-SHEET 2- I .iiarrze 5.

AIR-THUR J. COUGHTRY, OF LORAIN, OHIO.

PORTABLE DRILLING AND REAMING- MACHINE.

Specification of Letters Patent.

Patented June 10, 1919.

Application filed October 30, 1918. Serial No. 260,261.

To all whom it may concern:

Be it known that I, ARTHUR J. GOUGHTRY, a citizen of the United States,residing at Lorain, in the county of Lorain and State of Ohio, haveinvented a certain new and useful Portable Drilling and Beaming Machine,of which the following is a specification.

This invention has for its object a portable machine for drilling andreaming and similar operations, and particularly applicable for drillingand reaming rivet holes in shipbuilding, which machine is particularlysimple in construction and highly efficient and rapid in operation, andit consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawings in which like characters designate corresponding parts in allthe views.

Figure 1 is a side elevation of one embodiment of my machine.

Fig. 2 is a sectional view taken on line 2-2, Fig. 1.

This machine comprises generally, a body or frame, a tool carriermounted in the frame, a series of tools as reamers mounted in the toolcarrier and rotatable relatively thereto, the carrier being movable bythe movement of the body over the work to carry the tools successivelyinto operative position, and means for rotating the tools. The body 1may be of any suitable form, size and construction and as here shownincludes opposite side bars which terminate at their upper ends inhandles 2 and which have truck wheels 3 at their lower ends.

4; is a tool carrier which is here shown as rotatable and in the generalform of a hollow cylinder or a disk having hub 5 and an annular flange6. The hub 5 is mounted on a shaft 7 carried by the frame as hereinafterset forth.

8 are the tools as reamers mounted in the flange 6 of the carrier andextending radially outwardly relatively to the carrier 4, the reamershaving spindles or shanks 9 extending through the flange 6.

The reamers are rotated about their own axes by means carried by thebody or frame 1 and, as here shown, this means includes a driving gear10 mounted concentric with the carrier 4.. and meshing with beveledgears 11 mounted on the inner ends of the spindles element 15, a shaft16 connected to the motor and journaled ina bracket 17 supported betweenthe side bars 1 of the frame, a sec- 0nd shaft 18 also journaled inbearings formed in the bracket 17 and in a third bracket 19,intermeshing gears 20 and 21 'mounted respectively. on the shafts 16 and18 9 and means also carried by the body 1 for actuating the gear 10.

and intermeshing gears 22, 23 mounted respectively on the lower end ofthe shaft 18 and on the gear 10, the gear 23 being here shown as formedintegral with the gear 10.

The motor 14 may be an electric motor or an air motor and is connectedwith a suitable supply of power through electric wires or an air pipeconnectible at 24 to the motor. The operation of the motor is controlledby suitable-levers 25 and 26.

The carrier 4 and reamers 8 constitute a wheel which support the body orframe 1 and the side bars of the frame fulcrum on the shafts 7 and 12and the weight of the parts carried by the reamer above the shafts 7 and12 is counterbalanced or partly counterbalanced by a weight 27 locatedat the lower ends of the arms of the side bars 1 be- .tween the truckwheels 3.

In operation, the holes having been previously drilled in a horizontalsurface or the location of the holes to be drilled indicated or marked01f, the machine is then moved on the truck wheels 3 by lifting on thehandles 2 to place one of the tools 8 in one hole or on the center markindicating the position of the hole to be drilled. The motor is thenstarted so that the reamers are rotated through the shaft 16, gears 20,21, shaft 18, gears 22, 23, driving gear 10 and beveled gears 11, thebody being tilted about the axis of the carrier 1, that 1s, about theshaft the machine over the work, (the machine being supported by thecarrier and one of the tools) to bring a new tool into position to reamor drill another hole and to lift the first tool out of Operativeposition.

This operation is repeated along a line or series of holes, the operatormerely wheeling the machine along on the wheel constituted by thecarrier 4 and the tools 8.

The carrier 4 is removable and interchangeable with other carricrshaving differently spaced tools, it being understood that the tools arespaced so as to properly space the holes to be reamed or bored in thework.

This machine is particularly advantageous especially in shipbuilding asa large number of all the rivet holes can be reamed in a short timecompared with the method now used.

/Vhat I claim is:

1. A portable drilling and reaming machine comprising a movable body, amovable tool carrier mounted on the body and a series of tools mountedon the carrier, the carrier being movable by the advance movement of thebody to bring the tools successively into operative position, and meansfor actuating the tools, substantially as and for the purpose described.

2. A portable drilling and reamingmachine comprising a movable body, arotatable tool carrier mounted in the body, a series of tools mounted inthe carrier and arranged to come successively into operative positionduring rotation of the carrier, and means for rotating the tools,substantially as and for the purpose specified.

3. A portable drilling and reaming ma chine comprising a movable body, amovable tool carrier mounted in the body, a series of rotatable toolsmounted in the carrier, the tool carrier being movable by the advancemovement of the body to carry the tools successively into operativeposition, and means for actuating the tools comprising a driving gearand gears associated with the respective tools and meshing with thedriving gear, substantially as and for the purpose set forth.

4. A portable drilling and reaming machine comprising a body, arotatable tool carrier mounted in the body, rotatable tools extendingradially outwardly relatively to the carrier, the carrier and toolsconstituting a wheel rotatable during the movement of the body over thework, and means for rotating the tools, substantially as and for thepurpose described.

5. A portable drilling and reaming machine comprising a body, arotatable tool car rier mounted in the body, rotatable tools ex tendingradially outwardly relatively to the carrier, the carrier and toolsconstituting a wheel supporting the body and rotatable during themovement of the body over the work, and means for rotating the tools,substantially as and for the purpose specified.

6. A portable drilling and reaming machine comprising a body, arotatable tool carrier mounted in the body, tools extending radiallyrelatively to the carrier, the carrier and rotatable tools constitutinga Wheel supporting the body and rotatable during the movement of thebody over the Work, and means for rotating the tools, said meanscomprising a driving gear arranged concentrio with the carrier, andgears movable with the carrier and meshing with the driving gear,substantially as and for the purpose set forth.

7. A portable drilling and reaming machine comprising a movable body, atool carrier mounted in the body, a series of tools supported by thecarrier and movable successively thereby into operative position, thetool carrier and tools supporting the body, the carrier being movable tocarry the tools successively into operative position during the movementof the body, and means carried by the body for actuating the tools,substantially as and for the purpose described.

8. A portable drilling and reaming machine comprising a body, arotatable tool carrier mounted in the body, rotatable tools extendingradially outwardly relatively to the carrier, the carrier and toolsconstituting a wheel supporting the body, and rotatable by the movementof the body over the work, and means carried by the body and connectedto the tools for rotating the same, substantially as and for the purposespecified.

9. A portable drilling and reaming machine comprising a body a rotatabletool carrier mounted in the body, tools extending radially relatively tothe carrier, the carrier and tools constituting a wheel supporting thebody and rotatable during the movement of the body over the work, andmeans for rotating the tools, said means comprising a driving geararranged concentric with the carrier, and gears arranged in annularseries and connected to the tools and engaging the driving gear, andmeans carried by the body for actuating the driving gear, substantiallyas and for the purpose set forth.

10. A portable drilling and reaming machine comprising a body, a toolcarrier rotatably mounted in the body and having a series of tools onits periphery arranged to be brought successively into operativeposition, the body being fulcrumed on the axis of the tool carrier andextending in front and in the rear of said axis, and means carried bythe-body for rotating the tools, substantially as and for the purposedescribed.

11. A portable drilling and reaming machine CGIDPIlSlH a body, a toolcarrier ro tatably mounted in the body and having a series of tools onits periphery arranged to ing balanced on the axis of the carrier, subbebrought successively into operative posistantially as and for thepurpose specified. tion, the body being fulcrumed on theaxis Intestimony whereof, I have hereunto 10 of the tool carrier and extendingin front signed my name, at Lorain, in the county of and in the rear ofsaid axis, and means car- Lorain, and State of Ohio, this 15th day ofried by the body for rotating the body and October, 1918.

the tools, the parts carried by the body be- ARTHUR J. COUGHTRY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

